Support structure



FIG. 1 is a perspective view of the support structure;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of a second embodiment of the support structure;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a left side elevation view thereof;

FIG. 12 is a right side elevation view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken line showing of support structure is included for the purposes of illustrating portions of the article and forms no part of the claimed design.

The support structure is shown with a symbolic break. Any portion between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a support structure, as is shown and described. 